问题描述：
关于动物的英语谚语或短语
括号内短语的意思：
The plan is good enough to (kill two birds with one stone).
When the teacher came in,everyone was (as quiet as a mouse).
It's(raining cats and dogs)outside.
She's 16 years old and(ugly duckling has grown into a swan).
括号内短语的意思：
The plan is good enough to (kill two birds with one stone).
When the teacher came in,everyone was (as quiet as a mouse).
It's(raining cats and dogs)outside.
She's 16 years old and(ugly duckling has grown into a swan).
问题解答：
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